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Koen Kooi
bb34e69f3d
Signed-off-by: Koen Kooi <koen@dominion.thruhere.net> Signed-off-by: Denys Dmytriyenko <denys@ti.com>
37 lines
1.2 KiB
Diff
37 lines
1.2 KiB
Diff
From 6a49ff9d91721997f9c625b79e70b9a37bfdf10f Mon Sep 17 00:00:00 2001
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From: Johan Hovold <jhovold@gmail.com>
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Date: Fri, 10 Feb 2012 13:20:49 +0100
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Subject: [PATCH 024/147] USB: serial: fix console error reporting
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commit 548dd4b6da8a8e428453d55f7fa7b8a46498d147 upstream.
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Do not report errors in write path if port is used as a console as this
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may trigger the same error (and error report) resulting in a loop.
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Reported-by: Stephen Hemminger <shemminger@vyatta.com>
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Signed-off-by: Johan Hovold <jhovold@gmail.com>
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Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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---
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drivers/usb/serial/generic.c | 4 +++-
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1 file changed, 3 insertions(+), 1 deletion(-)
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diff --git a/drivers/usb/serial/generic.c b/drivers/usb/serial/generic.c
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index e4db5ad..9f0b2bf 100644
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--- a/drivers/usb/serial/generic.c
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+++ b/drivers/usb/serial/generic.c
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@@ -215,8 +215,10 @@ retry:
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clear_bit(i, &port->write_urbs_free);
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result = usb_submit_urb(urb, GFP_ATOMIC);
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if (result) {
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- dev_err(&port->dev, "%s - error submitting urb: %d\n",
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+ if (!port->port.console) {
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+ dev_err(&port->dev, "%s - error submitting urb: %d\n",
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__func__, result);
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+ }
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set_bit(i, &port->write_urbs_free);
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spin_lock_irqsave(&port->lock, flags);
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port->tx_bytes -= count;
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--
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1.7.9.4
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